Remove stevenjb@ from cr_elements in watchlists

TBR=stevenjb@chromium.org

Change-Id: If16478a59069f8a3df61e2341222e51a07eb6913
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2083568
Commit-Queue: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#746467}

WATCHLISTS

@@ -2397,8 +2397,7 @@
            'tikuta+cc@chromium.org',
            'ukai+cc@chromium.org',
            'yyanagisawa+cc@chromium.org'],
-    'cr_elements': ['michaelpg+watch-elements@chromium.org',
-                    'stevenjb+watch-md-settings@chromium.org'],
+    'cr_elements': ['michaelpg+watch-elements@chromium.org'],
     'cros_benchmarks': ['cros-perf-detectives@google.com',
                         'cywang@chromium.org',
                         'vovoy@chromium.org'],